Gasolene-engine.



No. 659,095. Patented 00L 2, |900.

J. M. LSEN.

GASOLENE ENGINE.

(Application ledet. 21, 1898.)

(No Model.) 2 Sheets-Sheet l.

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No. 659,095. l Patented oct. 2, |900.

.1. M. oLsEN.

GASDLENE ENGINE.

(Appumion med oct. 21,1895.) (No Model.) 2 Sheets-Sheet 2` UNITED STATESPATENT OEEICEe JOHN M. OLSEN, OF ELKHORN, WISCONSIN.

GASOLENE-ENGINE.

SPEGIFICATION forming part of Letters Patent No. 659,095, dated October2, 1900.

Application lecl October 21,1898. Serial No. 694,229. (No model.)

T0 cir/ZZ whom, t may concern:

Be it known that I, JOHN M. OLsEN, a citizen of the United States,residing at Elkhorn, in the county of Walworth and State of Wisconsin,have invented certain new and useful Improvements in Gasolene-Engines;and Ido hereby declare the followingto be afull, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

My invention relates to improvements in explosiveengines, andparticularly to one adapted to use gasolene as a fuel. Its main objectis to provide for automatically regulating the supply of explosive vaporto the engine-cylinder from and 'in accordance. with the speed of theengine.

Further objects are -that after delivering the `required amount orcharge of the explosive vapor to the engine-cylinder the supply ofgasolene or oil will be automatically entirely cut off and to deliverthe supply of oil or gasolene in the form of a lm or thin stream incontact with the air.

With these and other ends ih view the invention consists in the peculiarconstruction and arrangement of parts that will be hereinafter fullypointed out.

' In the accompanying drawings I have illustrated an embodiment of myinvention, in which- Figure 1 is a side elevation of a gasoleneengineembodying my improvements. Fig. 2 is an elevation, partly in section, onthe line 2 2 of Fig. 1,' illustrating the valve mechanism by which thesupply of gasoleneis regulated, the governor being omitted forclearness.

Like letters of reference designate corresponding parts in the severalfigures of the drawings, referring to which- A designates the cylinderof my improved engine, which is mounted on a suitable bed or base andhas the rod or stem a of its piston connected with a crank on the shaftl).

The cylinder A is provided with an inletport in its rear end wall, andthis alines and communicates with a passage formed in a casing B',secured to said end wall of the cylinder. This passage in the casing Bin turn communicates with the supply-duct B5, to the outer end of whichis connected the airinlet pipe b. A valve B is arranged to close theinner end of the supply-duct and has its stem extending through thebottom of the casing B. Around said stem, between an enlarged head atthe lower end thereof and the casing B', is arranged a coiled spring b5,which act-s to normally maintain the valve B in its seat and prevent thepassage of vapor from the supply-duct to the cylinder A.

Gasolene is admitted into the supply-duct through an inlet at one endthereof slightly in advance of the point of connection between said ductand the air-inlet pipe b.

In the embodiment of my invention herein illustrated the gasolene from asuitable storage-receptacle passes through a tube D, to the upper end ofwhich is connected the following-described valve mechanism. A T-shapedcasting D has its vertical mem ber e' connected with the aforesaidgasolene-feed pipe D, and the upper end of the passage in this branch eenters a chamber which communicates with a small lateral duct or outletthat extends from said chamber through the horizontal branch of thecasting D and opens at its inner end into the aforesaid supply-duct B5.The inner end of this lateral oil or gasoleue duct is adapted to beclosed by a valve having a head e2, conforming in cross-section to themouth @XX of said duct and terminating in a reduced portion eX, adaptedto extend into the said duct proper. The stem e3 of this val ve extendsacross the supply-duct B5 and through an arm D", that `ext-endslaterally from said duct B5. Atits outer end it is connected to theupper end of a lever @4,which is fulcrumed at e5 t0 a support which isprojected laterally from the downwardly-extending outer end of the saidarm D". for normally holding the lever e4 in such position that thevalve controlled thereby will prevent the escape of any gasolene intothe duct B5, and .a suitable cam is provided for automatically actuatingsaid lever at predetermined times to move the valve from its seat at theinner end of the lateral duct in the casting D/ and permit gasolene topass therethrough. As shown in Fig. 2, the fulcrumf-support of saidlever e4 is adjustably connected with the arm D".. Itsv stem or shank isthreaded and engaged by adjustingnuts e6, arranged on opposite sides ofsaid A spring e7 is provided I arm D". By this means the throw or extentof movement of the lever e* can be readily cont-rolled and varied asdesired. I also provide means for varying the size of the opening at theend ofthe said lateral gasoleneduct opposite the valve above described.This consists of a valve e, having its stem extending through the end ofthe casting D and provided with a suitable handle elo. Said handle isarranged to travel over the surface of a `suitable dial e, bearingsuitable indications to disclose at any time the relative size of theopening controlled by said valve e".

The automatic valve-controlling inechanism above referred to isconnected with and adapted to be actuated directly from the engine-shaftI). This shaft is geared by suitable gearing c with a valve-actuatingshaft CZ, that extends longitudinally of the cylinder A, and is mountedin suitable bearings g, provided thereon or on the bed of the engine. Onsaid shaft near its rear free end is mounted a disk E, on one face ofwhich is formed a cam E. This cam E is so shaped that when in the planesof the above-described lever e4 it will at each revolution contact withsaid lever and through vibration thereof actuate the valve e2. Toprevent wear, the outer face of the lower portion of said lever c4,against which the cam E rides, is protected by a supplemental wear-platees. The disk carrying the catn E is mounted on the shaft d, so as torotate therewith, but is also capable of movement longitudinallythereof, and means are provided whereby when the engine has acquired apredetermined speed such disk will be automatically adjusted and the camE moved out of line with said lever e4-that is, whei the engine hasacquired or exceeded acertain speed the cam E will be so adjusted thatthe valve e2 will not open, and therefore no fresh explosive charge willbe delivered to t-he cylinder until the speed of the engine has fallento a cert-ain rate. This adjustment of the cam E is accomplished bymeans of two weighted leversf, which are pivotally connected to acollaror sleeve f, secured upon the shaft. The rear unweighted ends ofthese levers engage with the said disk, and when under the inuence ofcentrifugal force the forward enlarged and weighted ends are forced awayfrom the shaft (Z the said disk will be moved longitudinally of theshaft d toward the sleevef andthe cam E shifted out of line with thelever e4. On the said shaft d is also secured a cam G, by means of whichthe exhaust-valve, arrangedin a casing F', will be actuated. This cam Gis adapted to engage the lower enlarged end of the stem F of theexhaust-valve, and a spring g is fitted about said stem for returningthe valve to its normal closed position when the cam G is not in contactwith said stem.

The embodiment of my invention herein illustrated is a four-cycleengine-that is, a charge is only drawn into the cylinder at each duces avacuum in the rear end of thecylin der, and the pressure of air on theunderside of the intake-valve B causes said valve to raise, thus openingcommunication between the supply-duct B5 and the inlet-port of theCylinder. At the time the piston starts forward the cam E causes thelever c4 to open the valve @2, and thus the air passing across the mouthof said valve becomes charged with the desired amount of gasolene. Itwill thus be seen that no separate mixing-chamber is required for themixing or commingling of the gasolene and air and that a uniform flow ofgasolene from beginning to end of the suction-stroke ofv the piston ismaintained, the mixture of the gasolene or oil and air thus beingeffected.

It will be observed that the valve e2 is adapted to extend suiicientlyWithin the bore of the horizontal member of the part D', it havingaforwardly-extending portion of such diameter or cross-section, as shown,to remain in said bore when the valve is unseated and provide an annularor circular space between the walls of said bore and forward portion atthat time, whereby when the valve is opened the escaping oil or gasolenewill be delivered past the face of the valve into the duct or chamber B5in the 4form of a film or thin stream into contact, and thus comminglewith the air admitted to said chamber or duct. Thus delivering the oilor gasolene prevents the dripping thereof, as would otherwise be thecase. The spring b5 is of such strength as to yield readily to the forceof said vapor on the under side of the valve B; but as soon as thepiston reaches the forward limit of its movement and begins to move backthe pressure of the vapor in the cylinder in rear of said piston, aidedby the spring b5, closes the valve B. Just as the piston reaches thelimit of its backward or rearward movement the charge drawn into thecylinder during the aforesaid forward movement of the piston is explodedand the pist on driven forward. During the forward movement, however,the valves B e2 are not opened, the pressure on the piston side of theformer holding it in its seat and the cam E being out of engagement withthe lever e4. As the piston moves back again the exhaust-valve is openedby the cam G, and at the next forward movement of the piston the valvesB e2 are again opened and a new charge drawn into the cylinder.

Various means and devices may be employed for exploding thegasolene-vapor in the engine-cylinder.

Having thus fully described my invention, what I claim, and desire tosecure by Letters Patent, is-

l. In an explosive-engine, the combination of a valved duct or pipefoi-supplying gasolene or similar Huid, a lever fulcrumed at anintermediate point of its length and having one ICO IOS

IIO

end connected to the Valve in said supply pipe or duct, V'a cam adaptedto be driven by the main engine -shaft and to actuate said valve-lever,and means for adjusting the fulorum of said lever and to vary the throwor extent of movement of the end thereof to which the said valve isonneet'ed, vsubstantially as set forth.

2. In an explosive-engine, the combination of a valved duct or pipe forsupplyin g gasolene or similar Huid, an arm having a threaded stemcarried by a support on the engine, adjusting-nuts engaging saidthreaded stem on opposite sides of Said support, a lever fuloruined onsaid arm and having one end oonneoted with the valve in thegasolene-supply duct or pipe, and a cam adaptedto be rotated by the mainengine-shaft and to aetuate said valve-lever, substantially as setforth.

- 8. In an explosive-engine, the combination of a valved duct or pipeforsupplyinggasolene or similar Huid, an arm having a threaded stemcarried by a support on the engine, adjusting-nuts engaging saidthreaded stem on opposite sides of said support, a lever fulcrumed onsaid arm and having one end connected with the valve in thegasolene-supply duet or pipe, and a cam adapted to be rotated by themain engine-shaft and to aetuate said valve-lever, and a governor forcontrolling said cam, substantially as set forth.

In testimony whereof I aiix my signature in presence of two witnesses.

JOHN M. OLSEN.

Witnesses:

Jos. F. LYON, S. BREESE, Jr.

